{"instruction": "You are an expert in named entity recognition. Please extract entities that match the schema definition from the input. Return an empty list if the entity type does not exist. Please respond in the format of a JSON string.", "schema": ["Anatomy"], "input": "In the three cancer cell lines used , we observe agonist - induced down - regulation of GPCR mRNAs for beta - 2 adrenergic receptor ( ADRB2 ) , prostaglandin E2 receptor subtype EP2 and prostaglandin E4 receptor subtype EP4 ( Figure 3 , Genes 3 , 4 , 12 ) , which were previously reported in DDT1 MF - 2 smooth muscle cells ( ADRB2 ) and 293 - EBNA human embryonic kidney cells ( prostaglandin E2 / E4 receptor subtypes EP2 / EP4 ) [ 20 ] , [ 21 ] ."}
{"Anatomy": ["cancer cell lines", "DDT1 MF - 2 smooth muscle cells", "293 - EBNA human embryonic kidney cells"]}